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  1. #ifndef BIOS_H_
  2. #define BIOS_H_
  3.  
  4. #define F_CPU 16000000UL
  5. #define F_BAUD  31250UL
  6.  
  7. #include <stdio.h>
  8.  
  9. //---------------------------------------------------------------------------
  10. // Public function structure definition and declaration
  11.  
  12. typedef struct bios{
  13.     int (*put_char)(char c, FILE *stream);
  14.     int (*get_char)(FILE *stream);
  15.     void (*reset)(void);
  16.     unsigned (*version)(void);
  17. } bios_t;
  18.  
  19. static bios_t bios_functions __attribute__ ((section (".bios_interface")));
  20.  
  21. //#ifndef BIOS_BUILDTYPE_BIOS
  22. static bios_t *bios = (bios_t*)&bios_functions;
  23. //#endif
  24.  
  25. #endif /*BIOS_H_*/
  26.